S
M
T
W
T
F
S
26
92°
76°
27
92°
75°
28
90°
73°
29
91°
74°
30
88°
73°
31
91°
74°
1
91°
75°
2
90°
75°
3
91°
73°
4
89°
76°
5
92°
76°
6
92°
75°
7
91°
75°
8
91°
74°
9
92°
75°
10
92°
75°
11
91°
74°
12
92°
76°
13
92°
76°
14
91°
74°
15
91°
73°
16
92°
74°
17
91°
73°
18
92°
75°
19
89°
73°
20
90°
75°
21
90°
73°
22
90°
74°
23
91°
75°
24
92°
75°
25
Hist. Avg.
89°
73°
26
Hist. Avg.
89°
73°
27
Hist. Avg.
89°
73°
28
Hist. Avg.
89°
73°
29
Hist. Avg.
89°
73°
30
Hist. Avg.
89°
73°
31
Hist. Avg.
89°
73°
1
Hist. Avg.
89°
73°
2
Hist. Avg.
89°
72°
3
Hist. Avg.
89°
72°
4
Hist. Avg.
88°
72°
5
Hist. Avg.
88°
72°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
August Weather in Slidell
Slidell's August 2026 forecast shows daily high temperatures ranging from 88° to 92°, with overnight lows between 73° and 76°. The average high for August is 91° with an average low of 74°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Slidell. See also: September | October | November.
